Thinkphp3.2结合phpqrcode生成二维码（含Logo的…

<form action="{:U('index/index')}" enctype="multipart/form-data"  method = "post">
    <b>尺寸大小：</b>
        <input type="text" name = "matrixPointSize">    <br>
    <b>边距大小：</b>
        <select class="form-control" name="matrixMarginSize" >
            <option value="1" selected="selected">1px</option>
            <option value="2">2px</option>
            <option value="3">3px</option>
            <option value="4">5px</option>
        </select><br>
    <b>容错级别：</b>
        <select class="form-control" name="errorCorrectionLevel" id="errorCorrectionLevel">
        <option value="L">Low (7%)</option>
        <option value="M" selected="selected">Medium (15%)</option>
        <option value="Q">Quartile (25%)</option>
        <option value="H">High (30%)</option>
        </select><br>
    <b>二维码内容：</b>
        <input type="text" name = "content">    <br>
    <b>二维码logo：</b>
        <input type="file" name = "test" /><br><br>

    <input type="submit" value = "生成二维码">
</form>
<img src="{$img}" alt="">

<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller {
    public function index(){
        $config = array(
            'maxSize'    =>    3145728,
            'rootPath'   =>    './upload/',
            'savePath'   =>    '',
            'saveName'   =>    array('uniqid',''),
            'exts'       =>    array('jpg', 'gif', 'png', 'jpeg'),
            'autoSub'    =>    true,
            'subName'    =>    array('date','Ymd'),
        );
        $upload = new \Think\Upload($config);// 实例化上传类
        // 上传单个文件
        $info   =   $upload->uploadOne($_FILES['test']);
        if(!$info) {// 上传错误提示错误信息
            $qrcode_path_new = './Public/Home/images/code'.'_'.date("Ymdhis").'.png';
            $content = $_POST['content'];
            $matrixPointSize = $_POST['matrixPointSize'];
            $matrixMarginSize = $_POST['matrixMarginSize'];
            $errorCorrectionLevel = $_POST['errorCorrectionLevel'];
            makecode_no_pic($content,$qrcode_path_new,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel);
            $this->assign('img',$qrcode_path_new);
        }else{
            $qrcode_path = "./upload/".$info['savepath'].$info['savename'];
            $content = $_POST['content'];
            $matrixPointSize = $_POST['matrixPointSize'];
            $matrixMarginSize = $_POST['matrixMarginSize'];
            $errorCorrectionLevel = $_POST['errorCorrectionLevel'];
            $url = "./upload/qrcode/".date("YmdHis").".png";
            makecode($qrcode_path,$content,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel,$url);
            $this->assign('img',$url);
            }
        $this->display();
    }
}

<?php
function makecode($qrcode_path,$content,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel,$url){
        /**     参数详情：
         *      $qrcode_path:logo地址
         *      $content:需要生成二维码的内容
         *      $matrixPointSize:二维码尺寸大小
         *      $matrixMarginSize:生成二维码的边距
         *      $errorCorrectionLevel:容错级别
         *      $url:生成的带logo的二维码地址
         * */
        ob_clean ();
        Vendor('phpqrcode.phpqrcode');
        $object = new \QRcode();
        $qrcode_path_new = './Public/Home/images/code'.'_'.date("Ymdhis").'.png';//定义生成二维码的路径及名称
        $object::png($content,$qrcode_path_new, $errorCorrectionLevel, $matrixPointSize, $matrixMarginSize);
        $QR = imagecreatefromstring(file_get_contents($qrcode_path_new));//imagecreatefromstring:创建一个图像资源从字符串中的图像流
        $logo = imagecreatefromstring(file_get_contents($qrcode_path));
        $QR_width = imagesx($QR);// 获取图像宽度函数
        $QR_height = imagesy($QR);//获取图像高度函数
        $logo_width = imagesx($logo);// 获取图像宽度函数
        $logo_height = imagesy($logo);//获取图像高度函数
        $logo_qr_width = $QR_width / 4;//logo的宽度
        $scale = $logo_width / $logo_qr_width;//计算比例
        $logo_qr_height = $logo_height / $scale;//计算logo高度
        $from_width = ($QR_width - $logo_qr_width) / 2;//规定logo的坐标位置
        imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);
        /**     imagecopyresampled ( resource $dst_image , resource $src_image , int $dst_x , int $dst_y , int $src_x , int $src_y , int $dst_w , int $dst_h , int $src_w , int $src_h )
         *      参数详情：
         *      $dst_image:目标图象连接资源。
         *      $src_image:源图象连接资源。
         *      $dst_x:目标 X 坐标点。
         *      $dst_y:目标 Y 坐标点。
         *      $src_x:源的 X 坐标点。
         *      $src_y:源的 Y 坐标点。
         *      $dst_w:目标宽度。
         *      $dst_h:目标高度。
         *      $src_w:源图象的宽度。
         *      $src_h:源图象的高度。
         * */
        Header("Content-type: image/png");
        //$url:定义生成带logo的二维码的地址及名称
        imagepng($QR,$url);
    }
    function makecode_no_pic($content,$qrcode_path_new,$matrixPointSize,$matrixMarginSize,$errorCorrectionLevel){
        ob_clean ();
        Vendor('phpqrcode.phpqrcode');
        $object = new \QRcode();
        $object::png($content,$qrcode_path_new, $errorCorrectionLevel, $matrixPointSize, $matrixMarginSize);
    }